Answer:
The study of heritable traits helps scientists discern which are dominant and therefore are likely to be passed on from one parent to the next generation. On the other hand, a recessive trait will be passed on only if both parents possess it.
or:
The study of heritable qualities aids scientists in determining which features are dominant and hence more likely to be handed down from one generation to the next. A recessive characteristic, on the other hand, will only be handed along if both parents have it.
